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Finding the Fourth Proportional to 144,303.88, 199,132.68 and 80,641.12

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Solution

The fourth proportional to 144,303.88, 199,132.68 and 80,641.12 is: 111,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,303.88 : 199,132.68 = 80,641.12 : x
  2. Step 2: Convert to fraction form
    144,303.88/199,132.68 = 80,641.12/x
  3. Step 3: Cross multiply
    144,303.88x = 199,132.68 × 80,641.12
  4. Step 4: Simplify right side
    144,303.88x = 16,058,282,343.80
  5. Step 5: Solve for x
    x = 16,058,282,343.80/144,303.88
  6. Step 6: Final answer
    x = 111,281.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.